Should the Tijuana River Valley be the next Superfund site in Southern California?

Should the Tijuana River Valley be the next Superfund site in Southern California?

Christopher Harris still remembers the melted rubber soles of a Border Patrol officer’s work boots from a few years ago. “They were brand new,” Harris, a retired Border Patrol agent who worked in San Diego for more than two decades, said Thursday. “He brought me his boots (after chasing illegal crossers somewhere in the Tijuana River Valley) and said, ‘I just went into this puddle of sludge and water and immediately noticed my feet were burning.…